Dynamic structural health monitoring for concrete gravity dams based on the Bayesian inference

The preservation of concrete dams is a key issue for researchers and practitioners in dam engineering because of the important role played by these infrastructures in the sustainability of our society. Since most of existing concrete dams were designed without considering their dynamic behaviour, mo...

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Bibliographic Details
Published in:Journal of civil structural health monitoring 2020-04, Vol.10 (2), p.235-250
Main Authors: Sevieri, Giacomo, De Falco, Anna
Format: Article
Language:English
Subjects:
Bayesian analysis
Civil Engineering
Concrete
Concrete dams
Control
Dam design
Dam engineering
Damage detection
Dynamical Systems
Engineering
Gravity dams
Measurement Science and Instrumentation
Monitoring systems
Numerical models
Original Paper
Reliability engineering
Statistical inference
Structural health monitoring
Structural reliability
Uncertainty
Vibration
Vibration monitoring
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Summary:The preservation of concrete dams is a key issue for researchers and practitioners in dam engineering because of the important role played by these infrastructures in the sustainability of our society. Since most of existing concrete dams were designed without considering their dynamic behaviour, monitoring their structural health is fundamental in achieving proper safety levels. Structural Health Monitoring systems based on ambient vibrations are thus crucial. However, the high computational burden related to numerical models and the numerous uncertainties affecting the results have so far prevented structural health monitoring systems for concrete dams from being developed. This study presents a framework for the dynamic structural health monitoring of concrete gravity dams in the Bayesian setting. The proposed approach has a relatively low computational burden, and detects damage and reduces uncertainties in predicting the structural behaviour of dams, thus improving the reliability of the structural health monitoring system itself. The application of the proposed procedure to an Italian concrete gravity dam demonstrates its feasibility in real cases.
ISSN:2190-5452
2190-5479
DOI:10.1007/s13349-020-00380-w